A valve with a stem that may be mechanically actuated to two different positions by rotary or linear motion. In the first position, one side of the valve disk is located against the seat permitting movement of the disk in a manner that will allow a flow of fluid in one direction through the valve. In the second position, the valve disk is lifted from the seat to allow a flow of fluid in either direction through the valve. The valve disk may be spring loaded. See also valve, stop-check and valve, stop-lift-check.
NSN 5915-01-281-8559
NSN 6110-00-322-0854
NSN 5910-00-140-0564
NSN 6110-01-054-3032
NSN 5996-00-891-2317
NSN 5998-01-550-1561
NSN 6105-00-691-8308
NSN 6145-01-152-2417
NSN 5985-01-460-9828
NSN 5945-01-334-8082
NSN 5998-00-739-3289
NSN 6685-01-448-2770